diff --git a/tests/tools/check_qml_syntax b/tests/tools/check_qml_syntax
index 258be6b4a..315dc9325 100755
--- a/tests/tools/check_qml_syntax
+++ b/tests/tools/check_qml_syntax
@@ -1,8 +1,8 @@
-#!/usr/bin/sh
+#!/usr/bin/env bash
 
-# ====================================================================
+# ==============================================================================
 # Tool to check the syntax of `.qml`/`.js` files.
-# ====================================================================
+# ==============================================================================
 
 RESOURCES_FILE='resources.qrc'
 LINTER=qmllint-qt5
diff --git a/tests/tools/private/pre-commit b/tests/tools/private/pre-commit
index ca87c9d66..4a88dbac3 100755
--- a/tests/tools/private/pre-commit
+++ b/tests/tools/private/pre-commit
@@ -1,4 +1,4 @@
-#!/usr/bin/sh
+#!/usr/bin/env bash
 
 # Check QML files, quit on failure.
 sh './tests/tools/check_qml_syntax'
diff --git a/tests/tools/test_qml b/tests/tools/test_qml
index 7e050a2c2..16a2e3563 100644
--- a/tests/tools/test_qml
+++ b/tests/tools/test_qml
@@ -1,8 +1,8 @@
-#!/usr/bin/sh
+#!/usr/bin/env bash
 
-# ====================================================================
+# ==============================================================================
 # Tool to run unit tests on all `*.spec.qml` files.
-# ====================================================================
+# ==============================================================================
 
 TEST_RUNNER='qmltestrunner-qt5'
 
@@ -20,7 +20,7 @@ NC='\e[0m'
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 cd $SCRIPT_DIR/..
 
-# ====================================================================
+# ==============================================================================
 
 so_far_so_good=0
 
diff --git a/tests/tools/update_resources b/tests/tools/update_resources
index 0548423ce..bf6d06267 100755
--- a/tests/tools/update_resources
+++ b/tests/tools/update_resources
@@ -1,6 +1,6 @@
-#!/usr/bin/sh
+#!/usr/bin/env bash
 
-# ====================================================================
+# ==============================================================================
 # Tool to build automatically `resources.qrc`.
 #
 # It should be used sparingly, it adds all `.qml`, `.svg`, `.png`,
@@ -8,7 +8,7 @@
 # in the resources file.
 #
 # If you don't want to add a particular file, do not use this script!
-# ====================================================================
+# ==============================================================================
 
 RESOURCES_FILE='resources.qrc'